* Summary and timing... moderate to occasionally heavy snow through the mid- morning hours with snow mainly becoming light this afternoon... tapering off this evening.

* Snow accumulations... as of midnight... snowfall around 9.5 inches was reported in Casper... with 14 inches noted over Casper Mountain.

* Additional snowfall... another 2 to 4 inches of snowfall will be possible across the lower elevations of Natrona County and the green and rattlesnake range. 3 to 5 additional inches of snowfall will be possible over Casper Mountain.

* Wind and visibility... north wind 20 to 30 mph with gusts around 40 mph today. Areas of blowing snow will drop visibility below one mile today. Wind chills will be near 20 below zero at times.

* Impacts... snowfall will create snow packed roadways resulting in considerable travel impacts. Interstate 25 has already seen closures associated with this system. Windy conditions will create low visibility and low wind chills today which could be deadly to Newborn livestock and could cause frost bite to humans and animals who are left exposed to the conditions for an extended period of time.

Precautionary/preparedness actions...

A Winter Storm Warning for heavy snow means severe winter weatherconditions are expected or occurring. Significant amounts ofsnow are forecast that will make travel dangerous. Only travel inan emergency. If you must travel... keep an extra flashlight... food... and water in your vehicle in case of an emergency.

The latest Road conditions provided by the Wyoming Department ofTransportation are available by calling 5-1-1 or on the internetat wyoroad.Info.